﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp1
{
    class StringUtil
    {
        public static Boolean Kkk(string a)
        {
            Boolean falg;
            if (a==null||a=="   ")
            {
                falg = true;
            }else
            {
                falg = false;
            }
            return falg;
        }
    }
}
